Learning pack · Foundation · CIE Core

Area

What's in this pack: printable worksheet PDF, matching answers PDF, and slides (Foundation · CIE Core depth). Area PPT lesson — Foundation (CIE Core). These slides walk a lower-secondary class through the key ideas with diagrams and worked examples on screen. This page summarises the teaching points for search and revision; download the PowerPoint for the full lesson, and use the companion worksheet and answers PDFs for independent practice.

Resources at the top · full summary · videos with short notes below.

🎒 Resources in this pack

Jump straight to the printable files, or scroll to the summary and videos.

Scaffolded Learning Sheet — attempt the worksheet, then use the Answers for a full written solution.

📝 Open Learning Sheet ✅ Open answers 🎬 More topic videos (6)📖 Full summary

Lesson slides · narrated video available

Download slides

Files: foundation-4 Area handout.pdf · foundation-4 Area handout answers.pdf

Full topic summary

Area PPT lesson — Foundation (CIE Core). These slides walk a lower-secondary class through the key ideas with diagrams and worked examples on screen. This page summarises the teaching points for search and revision; download the PowerPoint for the full lesson, and use the companion worksheet and answers PDFs for independent practice.

Key learning points

Rectangle $lw$ ; triangle $\tfrac12 bh$ ; parallelogram $bh$ ; trapezium $\tfrac12(a+b)h$ .
Compound shapes: split into known pieces or subtract a cut-out.
Convert mixed units before multiplying (cm vs m).

Worked example 1 — Triangle

Base $10$ , height $6$ . Area?

Working

A=\tfrac{1}{2}\times10\times6=30

Half base times height.

Worked example 2 — Trapezium

Parallel sides $5$ and $9$ , height $4$ . Area?

Working

A=\tfrac{1}{2}(5+9)\times4=28

Average of parallels × height.

Worked example 3 — Compound shape

Rectangle $8\times5$ remove $3\times2$ . Area?

Working

40-6=34

Add or subtract known areas.

🎬 Topic videos

Area of a Triangle: ½absinC
Eddie Woo · 11 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.
Surface Area of Spheres (1 of 2: Finding the Surface area of spheres and hemispheres)
Eddie Woo · 7 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.
Areas of Composite Figures
Eddie Woo · 13 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.
Surface Area of a Cone (1 of 2: Understanding the net)
Eddie Woo · 7 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.
Surface Area of a Cone (2 of 2: Deriving the formula)
Eddie Woo · 9 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.
Area of a Trapezium - Corbettmaths
Corbettmaths · 4 min
Lower Secondary classroom-friendly explainer. Scaffold→stretch friendly; use with mixed-ability groups.

More Lower Secondary packs

Browse the hub Learning Packs & Summary, or open the compact Area PPT lesson summary.